A sampling rod device for anti-clogging dust collector
By employing a gear meshing mechanism, spring pin limiting, and stainless steel material design, the problems of poor portability, easy loosening and clogging of the sampling rod in the dust detector are solved, enabling a fast and stable sampling process that is suitable for efficient monitoring in complex environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUADIAN LAIZHOU POWER GENERATION
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-26
AI Technical Summary
Existing dust detectors suffer from poor portability, insufficient connection stability, susceptibility to clogging, and cumbersome operation, making it difficult to meet the needs for efficient and stable on-site monitoring.
It adopts a gear and ring meshing structure, a spring and pin limiting mechanism, a multi-point connection design, and stainless steel material to achieve quick assembly, stable connection and anti-clogging, and improves operating comfort through ergonomic design.
It enables rapid assembly and disassembly of the sampling rod, ensuring stable connection, reducing the risk of blockage, improving operational efficiency and data accuracy, and is suitable for long-term monitoring in complex environments.
Smart Images
Figure CN224286462U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sampling equipment technology, specifically an anti-clogging dust sampler sampling rod device. Background Technology
[0002] A smoke and dust detector, also known as a smoke and dust concentration detector or smoke and dust concentration monitor, is a device specifically designed to detect the concentration of smoke and dust. It collects gas samples from stationary pollution sources such as flues and chimneys, and analyzes parameters such as the mass concentration and particle size distribution of smoke and dust particles, providing data support for environmental monitoring, industrial emission control, and pollution treatment. The core function of a smoke and dust detector is to reflect the smoke and dust emission status of pollution sources in real time and accurately, ensuring compliance with national environmental protection standards and regulations.
[0003] The main functions of a dust detector include:
[0004] Environmental monitoring: By sampling and analyzing smoke and dust concentrations, the impact of industrial emissions on the atmospheric environment is assessed;
[0005] Compliance management: Helping enterprises or institutions meet environmental regulations and avoid penalties for exceeding emission standards;
[0006] Pollution control optimization: Provide data references for the operation of flue gas purification equipment (such as dust collectors and desulfurization towers) and guide technological improvements.
[0007] However, existing dust detectors still have the following problems in practical applications:
[0008] Poor portability of sampling rods: Traditional sampling rods are mostly one-piece structures of fixed length, which are large in size and heavy in weight, making them difficult to carry and move, especially inconvenient to operate in high-altitude or narrow environments;
[0009] Insufficient connection stability: The threaded or snap-fit connection of the detachable sampling rod is prone to loosening due to vibration or long-term use, which can lead to a decrease in the seal between the sampling tube and the instrument, resulting in data errors.
[0010] Weak anti-clogging performance: The sampling tube and the connecting tube have different diameters or poor corrosion resistance, which makes it easy for dust particles to accumulate at the bends of the pipe, causing frequent blockages and requiring shutdown for cleaning, which affects the efficiency of continuous monitoring.
[0011] Cumbersome operation: Existing devices lack a quick locking mechanism, require repeated screwing during assembly, rely on tools for disassembly, make it difficult to quickly switch monitoring points, and increase manpower and time costs. Utility Model Content
[0012] To address the problems of existing dust detector sampling rods being large, heavy, and inconvenient to carry, prone to loosening and poor sealing at the connection points, easily clogged due to mismatched pipe diameters, and cumbersome assembly and disassembly, making it difficult to meet the needs of efficient and stable on-site monitoring, this utility model provides an anti-clogging dust detector sampling rod device.
[0013] This utility model is achieved through the following technical solution:
[0014] A dust sampling rod device for anti-clogging dust collector includes a dust sampler, a connecting pipe, a first mounting plate, a second mounting plate, and a chamber. One end of the dust sampler is fixedly connected to a first side of the first mounting plate. A threaded sleeve is fixedly installed on a second side of the first mounting plate, with the first and second sides of the first mounting plate facing each other. Both ends of the connecting pipe are fixedly connected to a third side of the second mounting plate and one end of the chamber, respectively. A threaded rod is movably installed on a fourth side of the second mounting plate, with the third and fourth sides of the second mounting plate facing each other. The threaded rod is threadedly engaged with the threaded sleeve. A rotatable toothed ring is installed on the surface of the connecting pipe, and a rotatable gear is installed on the third side of the second mounting plate. The gear meshes with the toothed ring, and the gear is fixedly connected to the threaded rod via a connecting rod, so that the rotation of the toothed ring drives the threaded rod to rotate synchronously through the gear. A toothed ring is movably mounted on the surface of the connecting pipe, and a gear is movably mounted on the other side surface of the mounting plate. The gear meshes with the toothed ring, and the gear is fixedly connected to the threaded rod through a connecting rod, so that the rotation of the toothed ring drives the threaded rod to rotate synchronously through the gear, which simplifies the assembly operation and ensures accurate connection alignment, avoids manual tightening errors, and improves operation efficiency.
[0015] The connecting tube has two annular plates on its surface. One annular plate is movably mounted on the surface of the connecting tube, while the other annular plate is fixedly mounted. A spring is wound between the two annular plates. A circular hole is opened on the side of the toothed ring, and a pin passes through the circular hole and the two annular plates. One end of the pin is fixedly connected to a pull plate. The elastic force of the spring pushes the pin into the circular hole to lock the rotational position of the toothed ring. Through the spring return and pin limiting mechanism, a quick locking and anti-loosening function is achieved, ensuring the stability of the threaded connection during sampling and preventing accidental loosening caused by vibration or external force.
[0016] As a further improvement to the above technical solution, the number of threaded sleeves and threaded rods is four sets each. The four sets of threaded sleeves are evenly distributed on the side of mounting plate one, and the four sets of threaded rods are evenly distributed on the side of mounting plate two. This symmetrically distributed multi-point connection design improves the overall structural stress balance, avoids wear or failure caused by single-point stress concentration, and extends the service life of the equipment.
[0017] As a further improvement to the above technical solution, the inner diameter of the circular hole is equal to the outer diameter of the pin. This precise dimensional matching ensures that there is no gap when the pin engages with the circular hole, enhancing locking reliability, preventing accidental rotation of the toothed ring due to minute displacement, and guaranteeing a stable connection.
[0018] As a further improvement to the above technical solution, a hand handle is fixedly installed at the bottom of the smoke sampler. The ergonomically designed hand handle structure enhances operational comfort, facilitates precise control of the sampling angle in high-altitude or confined environments, and reduces operator fatigue.
[0019] As a further improvement to the above technical solution, rubber rings are uniformly and fixedly installed on the surface of the hand handle. By increasing surface friction, it effectively prevents hand slippage, making it especially suitable for long-term operation in wet or oily environments, thus improving operational safety.
[0020] As a further improvement to the above technical solution, a sampling tube is fixedly installed at the end of the chamber away from the connecting pipe. This sampling tube design, which directly contacts the pollution source, ensures efficient collection of smoke and dust samples, reduces airflow interference, and improves data accuracy.
[0021] As a further improvement to the above technical solution, the dust sampler, connecting pipe, chamber, and sampling pipe are all made of stainless steel. The use of corrosion-resistant, high-strength stainless steel reduces the adhesion of dust particles to the inner wall of the pipe, lowers the risk of blockage, and extends the service life of the equipment in harsh environments.
[0022] As a further improvement to the above technical solution, the diameter of the connecting pipe is equal to the diameter of the sampling pipe. This unified pipe diameter design avoids turbulence or stagnation in the airflow caused by sudden changes in pipe diameter, ensuring smooth dust transport and further reducing the probability of blockage.
[0023] As a further improvement to the above technical solution, the connection between the sampling tube and the chamber is coaxially sealed and fixed. This coaxial sealing structure eliminates the risk of smoke and dust leakage caused by connection gaps, ensuring the sealing performance and data reliability of the sampling process, while also reducing maintenance frequency.
[0024] As can be seen from the above technical solutions, the beneficial effects of this utility model are as follows: This utility model precisely matches the mounting plate at the sampler end with several threaded sleeves, and the mounting plate at the connecting pipe end is threadedly engaged with the corresponding threaded rod, allowing the two to be quickly connected without additional tools. Furthermore, the torque distribution is uniform during rotation, making it less prone to uneven loading or jamming. The meshing structure of the gear ring and gear, along with the rigid linkage of the connecting rod, transmits the manual rotation operation to the threaded rod, achieving synchronous and precise screwing in and out, greatly improving assembly efficiency and positioning accuracy. The self-resetting limiting mechanism composed of a spring and a pin can quickly return to the locked state when the operation is released, ensuring stability under vibration or bumpy conditions and preventing slippage or leakage of parts due to loosening, thus effectively avoiding sampling errors or safety hazards caused by loose connections. The coordinated design of the sliding and fixed ring plates not only provides a convenient channel for pulling the plate but also ensures that the pin is always in the correct position through spring preload. Users only need to gently pull the plate to unlock, and then rotate the gear ring to complete the separation of the components; the entire process is simple and smooth. Meanwhile, the even distribution of multiple sets of threaded sleeves and threaded rods allows them to withstand higher tensile and torque forces during assembly and disassembly, improving the overall structural strength and service life of the sampling rod. This structure addresses both the need for rapid on-site replacement of monitoring points and the stability requirements for long-term continuous operation, ensuring that the sampling rod equipment remains efficient, clog-resistant, and reliable even in complex environments, providing a solid technical guarantee for environmental monitoring and emission control. Attached Figure Description
[0025] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0026] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.
[0027] Figure 2 This is a schematic diagram of the silo structure according to a specific embodiment of the present utility model.
[0028] Figure 3 This is a cross-sectional structural diagram of the mounting plate according to a specific embodiment of the present utility model.
[0029] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point A in the middle.
[0030] Figure 5 for Figure 3 A magnified schematic diagram of the structure at point B in the middle.
[0031] In the attached diagram: 1. Smoke sampler; 2. Connecting pipe; 3. Mounting plate one; 4. Mounting plate two; 5. Threaded sleeve; 6. Threaded rod; 7. Gear ring; 8. Gear; 9. Connecting rod; 10. Circular hole; 11. Circular ring plate; 12. Pin; 13. Spring; 14. Pull plate; 15. Chamber body; 16. Sampling pipe; 17. Hand handle; 18. Rubber ring. Detailed Implementation
[0032] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.
[0033] Please see the appendix Figure 1 To be continued Figure 5 As shown, this utility model provides an anti-clogging dust sampler sampling rod device, including a dust sampler 1, a connecting pipe 2, a mounting plate 3, a mounting plate 4, and a chamber 15.
[0034] In the above embodiment, one end of the dust sampler 1 is fixedly connected to the first side of the mounting plate 3, and a threaded sleeve 5 is fixedly installed on the second side of the mounting plate 3, with the first and second sides of the mounting plate 3 facing each other; both ends of the connecting pipe 2 are fixedly connected to the third side of the mounting plate 4 and one end of the chamber 15, respectively; a threaded rod 6 is movably installed on the fourth side of the mounting plate 4, with the third and fourth sides of the mounting plate 4 facing each other, and the threaded rod 6 is threadedly engaged with the threaded sleeve 5; a rotatable toothed ring 7 is installed on the surface of the connecting pipe 2, and a rotatable gear 8 is installed on the third side of the mounting plate 4, the gear 8 meshes with the toothed ring 7, and the gear 8 is fixedly connected to the threaded rod 6 through a connecting rod 9, so that the rotation of the toothed ring 7 drives the threaded rod 6 to rotate synchronously through the gear 8;
[0035] Specifically, one end of the dust sampler 1 is fixed to a mounting plate 3 by welding or bolting. Four sets of threaded sleeves 5 are evenly distributed on the side of the mounting plate 3. The threaded sleeves 5 are made of high-strength stainless steel, and their internal threads are precisely matched to the external threads of the threaded rods 6 to ensure smoothness and sealing during engagement. The two ends of the connecting pipe 2 are respectively connected and fixed to the mounting plate 4 and the chamber 15 via flanges. Four sets of threaded rods 6 are movably mounted on the side of the mounting plate 4 via a bearing structure. The threaded rods 6 and the threaded sleeves 5 are connected by threaded engagement. The four symmetrically distributed threaded structures form a multi-point rigid connection, dispersing the overall stress on the equipment and avoiding thread wear or breakage caused by single-point stress concentration. Simultaneously, the dust sampler 1 and the connecting pipe 2 can be detachably assembled through quick engagement, significantly shortening the overall length of the equipment and facilitating storage and transportation. The toothed ring 7 is movably mounted on the surface of the connecting pipe 2 through an annular groove. The outer teeth of the toothed ring 7 mesh with the gear 8 on the other side of the mounting plate 2 4. The gear 8 is fixedly connected to the connecting rod 9 through a keyway. The other end of the connecting rod 9 is coaxially connected to the threaded rod 6 through a coupling, so that the rotation of the toothed ring 7 drives the threaded rod 6 to rotate synchronously through the gear 8, replacing the traditional manual tightening operation, simplifying the assembly steps and improving the alignment accuracy, reducing the problem of thread misalignment or jamming caused by human error.
[0036] In the above embodiment, a movable annular plate 11 and a fixed annular plate 11 are provided on the surface of the connecting pipe 2. The movable annular plate 11 contacts the surface of the connecting pipe 2 through a sliding bearing, and the fixed annular plate 11 is fixed to the surface of the connecting pipe 2 by welding. A high-strength compression spring 13 is wound between the two. Multiple circular holes 10 are equidistantly opened on the side of the toothed ring 7 along the circumference. The pin 12 is made of hard alloy material, and its outer surface is polished to reduce frictional resistance. The pin 12 passes through the circular holes 10 and the corresponding through holes of the two annular plates 11. One end of the pin 12 is fixed by riveting to the pull plate 14. Under normal conditions, the elastic force of the spring 13 pushes the pin 12 into the circular hole 10, and the rotational freedom of the toothed ring 7 is locked by mechanical limit, preventing the threaded connection from loosening due to vibration or external impact during equipment operation, and ensuring a stable connection between the dust sampler 1 and the connecting pipe 2 during the sampling process. The bottom of the dust sampler 1 is fixed with a hand handle 17 by bolts. The hand handle 17 adopts an ergonomic arc design and has eight rubber rings 18 uniformly vulcanized on the surface. The rubber rings 18 are made of oil-resistant and non-slip silicone material. The textured surface increases the friction of the hand, effectively preventing the hand from slipping in high-altitude operations or humid environments. At the same time, it relieves muscle fatigue caused by holding for a long time and improves the safety and comfort of operation.
[0037] The sampling tube 16 is fixedly installed at the end of the chamber 15 away from the connecting pipe 2 via laser welding. The dust sampler 1, connecting pipe 2, chamber 15, and sampling tube 16 are all made of 304 stainless steel with electrolytic polishing, possessing high strength, corrosion resistance, and a smooth inner wall. This reduces the adhesion and accumulation of dust particles at pipe bends or connection gaps, significantly lowering the risk of blockage. The diameter of the connecting pipe 2 is strictly consistent with the diameter of the sampling tube 16. This equal-diameter design avoids airflow turbulence or local pressure changes caused by sudden diameter changes, ensuring uniform dust particle transport in the pipeline and reducing the probability of retention. The connection between the sampling tube 16 and the chamber 15 uses a high-precision coaxial positioning pin and sealing ring structure to achieve a gapless seal, eliminating dust leakage caused by assembly errors or vibration, and ensuring the accuracy of sampling data and the long-term reliability of the equipment.
[0038] During assembly, the operator aligns and attaches mounting plate 3 and mounting plate 4, then pulls pull plate 14 outward to disengage pin 12 from round hole 10. Spring 13 compresses and rotates gear ring 7. Gear ring 7, through gear 8 and connecting rod 9, drives four sets of threaded rods 6 to simultaneously screw into threaded sleeve 5. This allows for rapid assembly of the dust sampler 1 and connecting pipe 2 without requiring individual alignment. Releasing pull plate 14 resets spring 13, pushing pin 12 into round hole 10 of gear ring 7, locking the rotational position of gear ring 7 and ensuring a secure threaded connection. Disassembly is achieved by reversing the operation to separate components, enabling modular and compact storage and significantly reducing transportation and storage space requirements.
[0039] Four sets of symmetrically distributed threaded sleeves 5 and threaded rods 6 form a balanced force-bearing structure, dispersing the equipment's gravity and external loads, avoiding the risk of single-point connection failure, and extending the service life of the threads; the precise matching of the dimensions of the pin 12 and the round hole 10 ensures a gapless lock and prevents the toothed ring 7 from rotating accidentally due to slight displacement; the stainless steel material and electrolytic polishing process reduce dust adhesion, and the equal-diameter pipeline design ensures smooth airflow and reduces the probability of blockage; the arc-shaped contour of the hand handle 17 and the anti-slip rubber ring 18 adapt to different grip angles, improving the maneuverability in high-altitude or narrow environments; the coaxial sealing design of the sampling tube 16 and the chamber 15 eliminates the risk of leakage and ensures the authenticity and reliability of the sampling data.
[0040] Through innovative mechanical transmission, elastic locking, and modular structure, this device achieves comprehensive improvements in portability, connection stability, and anti-clogging performance, making it suitable for long-term dust monitoring needs in highly polluting industrial settings such as thermal power plants and chemical plants.
[0041] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A sampling rod device for an anti-clogging dust sampler, comprising a dust sampler (1), a connecting pipe (2), a first mounting plate (3), a second mounting plate (4), and a chamber (15), characterized in that, One end of the dust sampler (1) is fixedly connected to the first side of the mounting plate (3), and a threaded sleeve (5) is fixedly installed on the second side of the mounting plate (3). The first and second sides of the mounting plate (3) are opposite to each other. The two ends of the connecting pipe (2) are fixedly connected to the third side of the mounting plate (4) and one end of the chamber (15) respectively. A threaded rod (6) is movably installed on the fourth side of the mounting plate (4). The third and fourth sides of the mounting plate (4) are opposite to each other. The threaded rod (6) is threadedly engaged with the threaded sleeve (5). A rotatable toothed ring (7) is installed on the surface of the connecting pipe (2). A rotatable gear (8) is installed on the third side of the mounting plate (4). The gear (8) meshes with the toothed ring (7), and the gear (8) is fixedly connected to the threaded rod (6) through the connecting rod (9), so that the rotation of the toothed ring (7) drives the threaded rod (6) to rotate synchronously through the gear (8). The surface of the connecting pipe (2) is provided with two annular plates (11), one of which is movably installed on the surface of the connecting pipe (2) and the other is fixedly installed on the surface of the connecting pipe (2). A spring (13) is wound between the two annular plates (11). A circular hole (10) is opened on the side of the toothed ring (7). A pin (12) passes through the circular hole (10) and the two annular plates (11). One end of the pin (12) is fixedly connected to a pull plate (14). The elastic force of the spring (13) pushes the pin (12) to insert into the circular hole (10) to lock the rotation position of the toothed ring (7).
2. The anti-clogging dust collector sampling rod device according to claim 1, characterized in that, The number of threaded sleeves (5) and threaded rods (6) are four sets each. The four sets of threaded sleeves (5) are evenly distributed on the side of mounting plate one (3), and the four sets of threaded rods (6) are evenly distributed on the side of mounting plate two (4).
3. The anti-clogging dust collector sampling rod device according to claim 1, characterized in that, The inner diameter of the circular hole (10) is equal to the outer diameter of the pin (12).
4. The anti-clogging dust collector sampling rod device according to claim 1, characterized in that, The bottom of the dust sampler (1) is fixedly equipped with a hand handle (17).
5. The anti-clogging dust collector sampling rod device according to claim 4, characterized in that, Rubber rings (18) are uniformly fixedly installed on the surface of the hand handle (17).
6. The anti-clogging dust collector sampling rod device according to claim 1, characterized in that, A sampling tube (16) is fixedly installed at the end of the chamber (15) away from the connecting pipe (2).
7. The anti-clogging dust collector sampling rod device according to claim 1, characterized in that, The dust sampler (1), connecting pipe (2), chamber (15) and sampling pipe (16) are all made of stainless steel.
8. The anti-clogging dust collector sampling rod device according to claim 7, characterized in that, The diameter of the connecting tube (2) is equal to the diameter of the sampling tube (16).
9. The anti-clogging dust collector sampling rod device according to claim 7, characterized in that, The connection between the sampling tube (16) and the chamber body (15) is coaxially sealed and fixed.